Thats so sad to hear, it sounds like running is something part of your life if your running solo or with friends. I hope you rest up, work on some core strengthening and do an light jog in the future and feel no pain. I would be devastated to if a doctor told me not to run. Its like the same where my 72 year old mother who has no running experience in her lift time to tell me not to run if I feel a small niggle in my legs.
I do run with niggles here and there but nothing a bit of rest and some strengthening with some gradual increase helps resolve these.